管网叠压供水与市政供水管网的相互影响研究  

Interaction between Network Pressure-superposed Water Supply and Municipal Network

作　　者：邓佑锋[1] 许仕荣[1] 徐洪福[2] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]深圳市水务<集团>有限公司,广东深圳518031

出　　处：《中国给水排水》2012年第17期52-55,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07423-004)

摘　　要：由理论分析和Flowmaster模拟得出,在相同条件下叠压供水方式比传统二次供水方式对市政供水管网的瞬时影响更小。以机场宿舍和东湖丽苑两个泵房为研究对象,分析叠压供水设备与市政供水管网之间的相互影响规律。结果表明,管网压力缓慢变化时对叠压设备的运行基本没有影响;而当管网压力波动幅度较大时,将影响叠压设备供水压力的稳定。水泵启动过程中管网压力较平稳;直接停泵会导致流量剧烈变化并引起水锤,这将威胁供水安全,必须采取相应的水锤防护措施。Under similar conditions, theoretical analysis and Flowmaster simulation showed that the effect of network pressure-superposed water supply on municipal network was smaller than the effect of traditional secondary water supply. The interaction between network pressure-superposed water supply and municipal network was analyzed in experiments at Jichangsushe and Donghuliyuan pump stations. The results showed that the slow change of municipal water pressure did not affect the operation of the pressure-superposed water supply device, but wide fluctuation in municipal water pressure led to pressure instability. The municipal water pressure was stable during pump startup. However, stopping the pump abruptly changed the flow and resulted in water hammer, which threatens the security of water supply. So water hammer protection measures are necessary.

关 键 词：管网叠压供水 市政供水管网 水锤 

分 类 号：TU991.33[建筑科学—市政工程]